1 Wedding invitation costs can range from $1.50 each with do-it-yourself kits from craft stores to $3 or $4 each for mid-range standardized invitations on mid-weight paper to $9 or more each for invitations that use a high-end printing process -- such as engraving or letterpress -- on quality handmade or silk paper. The per-invitation cost goes up with extra folds -- tri-fold costs more than bi-fold -- or lining on the invitations or envelopes. 2  The average couple spends $659 on invitations and reply-cards, according to The Bridal Association of America.
The highest sea-level pressure on Earth occurs in Siberia, where the Siberian High often attains a sea-level pressure above 1050.0 mbar (105.00 kPa, 30.01 inHg), with record highs close to 1085.0 mbar (108.50 kPa, 32.04 inHg).
Air pressure is highest at the bottom of the atmosphere, close to the Earth's surface. The pressure decreases with height, since there is less air above. About 3.5 miles up in the atmosphere, the pressure is about one-half what it is at the surface.